25630925 has 12 divisors (see below), whose sum is σ = 32879220. Its totient is φ = 19797120.

The previous prime is 25630921. The next prime is 25630931. The reversal of 25630925 is 52903652.

It can be written as a sum of positive squares in 6 ways, for example, as 1532644 + 24098281 = 1238^2 + 4909^2 .

It is not a de Polignac number, because 25630925 - 2² = 25630921 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25630891 and 25630900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25630921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16952 + ... + 18401.

It is an arithmetic number, because the mean of its divisors is an integer number (2739935).

Almost surely, 2^25630925 is an apocalyptic number.

25630925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25630925 is a deficient number, since it is larger than the sum of its proper divisors (7248295).

25630925 is a wasteful number, since it uses less digits than its factorization.

25630925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35392 (or 35387 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 25630925 is about 5062.6993787899. The cubic root of 25630925 is about 294.8411478384.

The spelling of 25630925 in words is "twenty-five million, six hundred thirty thousand, nine hundred twenty-five".